JP2006014945A - System, method and program for updating biological information - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To maintain the excellent accuracy of authentication of a living body by securely meeting the change in biological information. <P>SOLUTION: The subject system consists of a stored biological information obtaining part 107, an authenticated biological information obtaining part 108, and an update command part 109. The stored biological information obtaining part 107 obtains the biological information as stored biological information read by a biological information extracting device 115, from the biological information extracting device 115 which reads the biological information from a storage device 50. The authenticated biological information obtaining part 108 obtains the biological information on a subject, as authenticated biological information at the time of authentication of the living body read by a biological information authenticating device 120, from the biological information authenticating device 120 which reads the biological information from the subject of the biological authentication. The update command part 109 executes a collation process of the stored biological information and the authenticated biological information, and transmits a command to store the authenticated biological information including the authenticated biological information if it is found in the collation process that the stored biological information corresponds to the authenticated biological information. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a biometric information update system, a biometric information update method, and a biometric information update program.

Authentication techniques based on biometric information have been proposed. For example, a portable storage device that stores registered biometric information of a user, means for reading registered biometric information from the portable storage device, a portable terminal that transmits the registered biometric information and a service request by data communication, A monitoring device that determines whether the registered biometric information transmitted from the mobile terminal is valid, an acquisition unit that acquires biometric information input by a user, the determination result and the registered biometric information from the monitoring device And means for receiving the service request, means for collating input biometric information by the user with the received registered biometric information when the determination result indicates that the determination result is valid, and the input biometric information A user authentication system comprising a means for providing the requested service to the user when it is legitimate. Reference 1), and the like have been proposed.
JP 2004-137553 A

  In the prior art, no technology has been proposed in which biometric information serving as an authentication standard is automatically updated in response to an event in which biometric information changes due to aging or the like in a subject subject to biometric authentication.

  Therefore, the present invention has been made in view of the above problems, and provides a biometric information update system, a biometric information update method, and a biometric information that can reliably cope with changes in biometric information and maintain good biometric authentication accuracy. The main purpose is to provide an information update program.

  The biometric information update system of the present invention that solves the above problem is a system that automatically updates biometric information for biometric authentication stored in a storage device, and the biometric information extraction device that reads biometric information from the storage device, The biometric information authentication apparatus acquires biometric information read by the biometric information extraction apparatus as stored biometric information, and the biometric information authentication apparatus reads biometric information from a biometric authentication target person. The biometric information at the time of authentication is acquired as biometric information at the time of authentication, and the verification process of the stored biometric information and the biometric information at the time of authentication is executed. In the verification process, the stored biometric information is acquired. If the information matches the biometric information at the time of authentication, an instruction to store the biometric information at the time of authentication including the biometric information at the time of authentication is sent to the storage device. To comprises a update instruction unit.

  The biometric information update method of the present invention is a method for automatically updating biometric information for biometric authentication stored in a storage device by a computer, and the biometric information extraction device that reads the biometric information from the storage device The biometric information at the time of biometric authentication that the biometric information authentication device reads about the subject from the biometric information authentication device that acquires the biometric information read by the information extraction device as stored biometric information and reads the biometric information from the subject of biometric authentication. Is obtained as authentication biometric information, and the stored biometric information and the authentication biometric information are collated. If the stored biometric information matches the authentication biometric information in the collation processing, An instruction to store the biometric information at the time of authentication including the biometric information at the time of authentication is transmitted to the storage device.

  The biometric information update program of the present invention is a program that causes a computer to execute a method for automatically updating biometric information for biometric authentication stored in a storage device. The biometric information extraction program reads biometric information from the storage device. The biometric information read by the biometric information extraction apparatus is obtained as stored biometric information, and the biometric information authentication apparatus that reads biometric information from the biometric authentication target person reads the biometric information read by the biometric information authentication apparatus. A step of acquiring biometric information at the time of authentication as biometric information at the time of authentication, and a collation process between the stored biometric information and the biometric information at the time of authentication are executed, and in the collation process, the stored biometric information and the biometric information at the time of authentication are If they match, an instruction to store the authentication biometric information including the authentication biometric information is transmitted to the storage device. A step, characterized in that it comprises a.

  In addition, the problems disclosed by the present application and the solutions thereof will be clarified by the embodiments of the present invention and the drawings.

  ADVANTAGE OF THE INVENTION According to this invention, it can respond reliably with respect to the change of biometric information, and can maintain the precision of biometric authentication favorably.

  Embodiments of the present invention will be described below in detail with reference to the drawings. FIG. 1 is a network configuration diagram including a biometric information update system according to this embodiment. In the present embodiment, for example, a situation is assumed in which the biometric information update system of the present invention automatically updates the biometric information of the user at an ATM or a counter of a financial institution where biometric authentication of the user is performed. Of course, the application range of the present invention is not limited to this assumption example, and can be applied to any situation where biometric authentication is performed.

  In addition, biometric authentication is to authenticate the person by using different parts of the body and behavioral features of the individual human, and this system is embodied and systemized as a biometric authentication (human crypto authentication) system. is called. Examples of biometric authentication technologies that have been put into practical use and studied include biometric information such as fingerprints, signatures, finger veins, palm prints, retinas, irises, facial expressions, and voices. In the present embodiment, for example, biometric authentication using finger vein verification technology is taken as an example.

  A biometric information update system 100 (hereinafter, system 100) of the present invention is, for example, a computer that is a biometric authentication device, and is stored in a program database 101 such as a hard disk drive to realize a function for executing the biometric information update method of the present invention. The program 102 is read into the memory 103 and is executed by the CPU 104 which is an arithmetic unit.

  The system 100 also includes an I / O unit 105 that is connected to an external device such as an ATM terminal 200 and the like via a network 130 such as a LAN or the Internet to exchange data. Furthermore, the system 100 includes an IC card read / writer device 115 that is a biometric information extraction device that reads biometric information from a biometric information storage unit 51 in a storage device such as an IC card 50, and biometric information that reads biometric information from a subject of biometric authentication. It is assumed that a finger vein sensor device 120 as an authentication device is provided. The finger vein sensor device 120 can execute a process of collating the biometric information read from the storage device 50 with the biometric information acquired by sensing the user at the time of authentication using the collation program 106. To do.

  Hereinafter, functional units that are configured and held by the system 100 based on the program 102 will be described. The system 100 acquires biometric information read by the biometric information extraction device 115 as stored biometric information from an IC card read / writer device (biological information extraction device) 115 that reads biometric information from the IC card (storage device) 50. The stored biometric information acquisition unit 107 is provided.

  Further, the system 100 authenticates the biometric information at the time of biometric authentication read by the biometric information authentication device 120 for the subject from a finger vein sensor device (biometric information authentication device) 120 that reads biometric information from the subject of biometric authentication. An authentication biometric information acquisition unit 108 is acquired as time biometric information.

  Further, the system 100 executes a collation process between the stored biometric information and the authentication biometric information, and if the stored biometric information matches the authentication biometric information in the collation process, the system 100 An update instruction unit 109 is provided for transmitting an instruction to store the biometric information at the time of authentication including the biometric information to the storage device 50.

  In addition, when transmitting the storage instruction to the storage device 50, the system 100 stores the biological information with the oldest storage date and time in the storage device 50 among the one or more pieces of biological information already stored in the storage device 50. An old information erasure instruction unit 110 that transmits an erasure instruction to the corresponding storage device 50 can be provided.

  In addition, the system 100 collates one or more pieces of biological information stored in the storage device 50 with the authentication-time biological information, and among the one or more pieces of biological information already stored in the storage device 50, A dissimilar information erasure instruction unit 111 that transmits an erasure instruction of biometric information having the lowest similarity to the biometric information at the time of authentication to the corresponding storage device 50 can be provided.

  When the biometric information of a user is registered, updated or deleted in the IC card 50 or the system 100, the user information storage unit 310 also registers the corresponding user in the business system 300 in the financial institution. The status is updated according to the registration status of the biometric information.

  Further, various terminals 200 such as ATMs and window terminals shown in FIG. 1 are computers used when a user receives biometric authentication. Like the system 100, various input / output processes required as the terminal 200 are used. The business program 210 that realizes functions and the like is read into the memory and executed by the arithmetic unit. Further, the terminal 200 includes a communication interface that connects to an external device such as the system 100 via the network 130 such as a LAN or the Internet to exchange data.

  Further, the terminal 200 may include an IC card read / writer device 115 that performs a read / write process on the biological information storage unit 51 of the IC card 50. In addition, the terminal 200 includes a display device such as a display that outputs biometric authentication results and the like, and input devices such as a touch panel, a keyboard, and a mouse that receive input from the user.

  Next, each data structure example of the biometric information storage unit 51 in the IC card 50 and the customer information storage unit 310 in the business system 300 used by the biometric information update system of the present embodiment will be described. FIG. 2 is a diagram illustrating an example of a data structure in each of (a) the biological information storage unit and (b) the customer information storage unit in the present embodiment. The biometric information storage unit 51 stores the biometric information of the user of the corresponding IC card 50. For example, information such as a biometric reading part pattern (substance of biological information), a reading date, etc. using the biometric reading part as a key. It is a collection of records related to.

  Further, the customer information storage unit 310 registers the corresponding user to be updated according to the registration status of the biometric information when the biometric information of the user is registered, updated, or deleted in the IC card 50 or the system 100. Stores status. The data structure is, for example, a collection of records in which information such as a customer name, an account balance, and biometric information registration is associated using an account number at the corresponding financial institution as a key.

  Note that the functional units 106 to 111 in the system 100 shown so far may be realized as hardware, or may be realized as a program stored in an appropriate storage device such as an HDD or a memory. In this case, the CPU 104 reads the corresponding program from the storage device into the memory 103 and executes it in accordance with the execution of the program.

  In addition to the ATM line and the dedicated line, various networks such as the Internet, LAN, WAN (Wide Area Network), power line network, wireless network, public line network, and mobile phone network may be adopted for the network 130. I can do it. Further, if a virtual private network technology such as VPN is used, communication with improved security is established when the Internet is adopted.

  Hereinafter, the actual procedure of the biometric information update method will be described with reference to the drawings. Various operations corresponding to the biometric information update method described below are realized by a program 102 that the system 100 reads out to the memory 103 and executes. And this program 102 is comprised from the code | cord | chord for performing the various operation | movement demonstrated below.

  FIG. 3 is a flowchart showing a biometric information registration procedure in the present embodiment. First, biometric information registration processing in the IC card 50 as a storage device according to the present invention will be described. The system 100 uses the finger vein sensor device 120 to read biometric information a plurality of times (or once for each location) for a predetermined portion (eg, a plurality of locations) of the user's body of the IC card 50, and Acquisition is executed (s1000). The acquired biometric information is transmitted to the read writer device 115 of the IC card 50 (s1001).

  The read writer device 115 receives it (s1002), and stores the received biological information in the biological information storage unit 51 of the IC card 50 (s1003). It is assumed that the IC card 50 is set in advance in the lead writer device 115 prior to biometric information registration processing. The IC card 50 notifies the terminal 200 such as an ATM through the reader / writer device 115 that the biometric information is stored in the IC card 50 (s1004).

  On the other hand, the terminal 200 receives this notification (s1005), and transmits a recording request for the biometric information stored in the IC card 50 to the business system 300 such as a financial institution (s1006). ). On the other hand, the business system 300 receives this recording request (s1007), and records the registration status of the biometric information related to the user in the customer information storage unit 310 in response to the recording request (s1008). This is the end of the biometric information registration process.

  Next, an automatic update process of biometric information at the time of ATM (terminal 200) transaction of the financial institution will be described. FIG. 4 is a flowchart showing an actual procedure 1 of the biometric information update method in the present embodiment. First, the IC card 50 set in the read / writer device 115 of the terminal 200 serving as an ATM reads the biometric information from its own biometric information storage unit 51 (s1100), and this is read into the ATM 200 (the readwriter device 115). Transmit (s1101).

  The ATM 200 receives the biological information from the IC card 50 (s1102) and transfers it to the system 100 (s1103). The system 100 receives the biometric information transferred from the ATM 200 (s1104) and stores it in a suitable memory as stored biometric information of the present invention.

  On the other hand, the system 100 acquires the biometric information reading result regarding the predetermined part of the user's body from the finger vein sensor device 120, that is, the biometric information at the time of authentication (s1105) and stores it in an appropriate memory. Here, the system 100 executes a collation process between the stored biometric information and the biometric information at the time of authentication (s1106). If the stored biometric information and the biometric information at the time of authentication do not match in the collation process (s1106: NG) Notifying that the authentication related to the user has failed, the ATM 200 is notified that the biometric information stored in the IC card 50 and the biometric information of the user obtained at the time of authentication do not match (s1107). The ATM 200 receives and outputs this notification (s1108), and the process ends.

  On the other hand, if the stored biometric information and the biometric information at the time of authentication match in the verification process (s1106: OK), the normal biometric information is processed while the biometric information at the time of authentication is changed. An instruction to store the biometric information at the time of authentication is transmitted to the ATM 200. The ATM 200 receives this (s1109) and transfers it to the IC card 50 (s1110). The IC card 50 receives the storage instruction (s1111). The biometric information storage unit 51 refers to the “date” information in the biometric information storage unit 51 for the biometric information stored in the IC card 50 among the one or more pieces of biometric information already stored. This is identified and replaced with the authentication biometric information (s1112). Then, the process in this flow ends.

  Of the one or more pieces of biological information already stored in the IC card 50, the biological information having the oldest storage date and time in the IC card 50 is replaced with the biological information included in the storage instruction, that is, the The old biometric information erasure instruction can be transmitted from the system 100 to the corresponding IC card 50.

  Further, the system 100 transmits an instruction to delete the biometric information having the lowest similarity to the biometric information at the time of authentication among the one or more pieces of biometric information already stored in the IC card 50 to the corresponding IC card 50. It is good. In this case, in the IC card 50, for example, the feature point of the biometric information at the time of authentication is compared with the feature point of each biometric information stored in the biometric information storage unit 51, and the similarity is determined based on the frequency of matching points. Judgment can be made.

  Next, a procedure for automatically updating biometric information at the time of a transaction at the window of the financial institution will be described. FIG. 5 is a flowchart showing an actual procedure 2 of the biometric information update method in the present embodiment. First, the IC card 50 set in the read writer device 115 provided near the window terminal 200 reads the biometric information from its own biometric information storage unit 51 (s1200), and this is read out from the system 100 (the lead writer device). 115) (s1201).

  In the system 100, the biometric information is received from the IC card 50 (s1202), and this is stored in a suitable memory as stored biometric information of the present invention. Further, the system 100 acquires the biometric information reading result relating to the predetermined part of the user's body from the finger vein sensor device 120, that is, the biometric information at the time of authentication (s1203), and stores it in an appropriate memory. Here, the system 100 executes a collation process between the stored biometric information and the authentication biometric information (s1204). If the stored biometric information and the authentication biometric information do not match in the collation process (s1204: NG) Notifying that the authentication related to the user has failed, the window terminal 200 is notified that the biometric information stored in the IC card 50 and the biometric information of the user obtained at the time of authentication do not match (s1205). . The window terminal 200 receives and outputs this notification (s1206), and the process ends.

  On the other hand, in the verification process, if the stored biometric information and the biometric information at the time of authentication match (s1204: OK), the normal biometric information is processed while the biometric information at the time of authentication is changed. An instruction to store the biometric information at the time of authentication is transmitted to the IC card 50 (read writer device 115). The IC card 50 receives this (s1207), and in the biological information storage unit 51, among the one or more pieces of biological information already stored, the biological information with the oldest storage date and time in the IC card 50 is obtained. It identifies by referring to the “date” information in the storage unit 51 and replaces it with the authentication biometric information (s1208). Thereby, the processing in this flow is completed.

  Of the one or more pieces of biological information already stored in the IC card 50, the biological information having the oldest storage date and time in the IC card 50 is replaced with the biological information included in the storage instruction, that is, the The old biometric information erasure instruction can be transmitted from the system 100 to the corresponding IC card 50.

  Further, the system 100 transmits an instruction to delete the biometric information having the lowest similarity to the biometric information at the time of authentication among the one or more pieces of biometric information already stored in the IC card 50 to the corresponding IC card 50. It is good. In this case, in the IC card 50, for example, the feature point of the biometric information at the time of authentication is compared with the feature point of each biometric information stored in the biometric information storage unit 51, and the similarity is determined based on the frequency of matching points. Judgment can be made.

---- Other Embodiments ----
As a storage device in the present invention, in addition to the IC card 50, a server 400 can be exemplified as another embodiment. FIG. 6 is a network configuration diagram including a biometric information update system according to another embodiment. Hereinafter, another embodiment of the present invention will be described in detail with reference to the drawings.

  The biometric information update system 100 (hereinafter, system 100) in this embodiment is, for example, a computer that is a biometric authentication device, as in the system 100 in the above-described embodiment, and realizes a function of executing the biometric information update method of the present invention. Therefore, the program 102 stored in the program database 101 such as a hard disk drive is read into the memory 103 and executed by the CPU 104 which is an arithmetic unit.

  The system 100 also includes an I / O unit 105 that is connected to an external device such as an ATM terminal 200 and the like via a network 130 such as a LAN or the Internet to exchange data. Further, the system 100 includes a card reader 116 for a bank card issued by the financial institution and a finger vein sensor device 120 as a biometric information authentication device that reads biometric information from a subject of biometric authentication. The finger vein sensor device 120 can execute a process of collating the biometric information read from the server 40050 with the biometric information acquired by sensing the user at the time of authentication using the collation program 106. .

  Hereinafter, functional units that are configured and held by the system 100 based on the program 102 will be described. The system 100 acquires biometric information read by the biometric information extraction device as stored biometric information from a device that reads biometric information from the server (storage device) 400 (biological information extraction device: for example, a search function unit of a hard disk). The stored biometric information acquisition unit 107 is provided.

  Further, the system 100 authenticates the biometric information at the time of biometric authentication read by the biometric information authentication device 120 for the subject from a finger vein sensor device (biometric information authentication device) 120 that reads biometric information from the subject of biometric authentication. An authentication biometric information acquisition unit 108 is acquired as time biometric information.

  Further, the system 100 executes a collation process between the stored biometric information and the authentication biometric information, and if the stored biometric information matches the authentication biometric information in the collation process, the system 100 An update instruction unit 109 is provided for transmitting an instruction to store biometric information at the time of authentication including biometric information to the server 400.

  In addition, when transmitting the storage instruction to the server 400, the system 100 issues an instruction to delete the biological information with the oldest storage date and time stored in the server 400 among one or more pieces of biological information already stored in the server 400. The old information erasure instruction unit 110 to be transmitted to the server 400 can be provided.

  Further, the system 100 collates one or more pieces of biometric information stored in the server 400 with the biometric information at the time of authentication, and among the one or more pieces of biometric information already stored in the server 400, the authentication The dissimilar information erasure instruction unit 111 that transmits the erasure instruction of the biometric information having the lowest similarity to the biometric information to the corresponding server 400 can be provided.

  When the biometric information of a user is registered, updated, or deleted in the server 400 or the system 100, the registration status of the corresponding user is also stored in the customer information storage unit 310 in the business system 300 in the financial institution. Are updated according to the registration status of the biometric information.

  Further, various terminals 200 such as ATMs and window terminals shown in FIG. 1 are computers used when a user receives biometric authentication. Like the system 100, various input / output processes required as the terminal 200 are used. The business program 210 that realizes functions and the like is read into the memory and executed by the arithmetic unit. Further, the terminal 200 includes a communication interface that connects to an external device such as the system 100 via the network 130 such as a LAN or the Internet to exchange data.

  Further, the terminal 200 may include a functional unit that executes a read / write process on the biological information storage unit 410 of the server 400. In addition, the terminal 200 includes a display device such as a display that outputs biometric authentication results and the like, and input devices such as a touch panel, a keyboard, and a mouse that receive input from the user.

  Next, examples of data structures of the biometric information storage unit 410 in the server 400 and the customer information storage unit 310 in the business system 300 that are used by the biometric information update system of the present embodiment will be described. FIG. 7 is a diagram illustrating an example of a data structure in each of (a) the biological information storage unit and (b) the customer information storage unit in the present embodiment. The biometric information storage unit 410 stores the biometric information of the user of the corresponding server 400. For example, the biometric reading part is used as a key, and information such as the pattern of the biometric reading part (substance of the biometric information) and the reading date is stored. It is a collection of related records.

  The customer information storage unit 310 also updates the registration status of the corresponding user to be updated according to the registration status of the biometric information when the biometric information of the user is registered, updated, or deleted in the server 400 or the system 100. Is stored. The data structure is, for example, a collection of records in which information such as a customer name, an account balance, and biometric information registration is associated using an account number at the corresponding financial institution as a key.

  Note that the functional units 106 to 111 in the system 100 shown so far may be realized as hardware, or may be realized as a program stored in an appropriate storage device such as an HDD or a memory. In this case, the CPU 104 reads the corresponding program from the storage device into the memory 103 and executes it in accordance with the execution of the program.

  In addition to the ATM line and the dedicated line, various networks such as the Internet, LAN, WAN (Wide Area Network), power line network, wireless network, public line network, and mobile phone network may be adopted for the network 130. I can do it. Further, if a virtual private network technology such as VPN is used, communication with improved security is established when the Internet is adopted.

  Hereinafter, another actual procedure of the biometric information update method will be described with reference to the drawings. Various operations corresponding to the biometric information update method described below are realized by a program 102 that the system 100 reads out to the memory 103 and executes. And this program 102 is comprised from the code | cord | chord for performing the various operation | movement demonstrated below.

  FIG. 8 is a flowchart showing a biometric information registration procedure according to another embodiment. First, biometric information registration processing in the server 400 as a storage device according to the present invention will be described. The system 100 acquires biometric information by reading the biometric information a plurality of times (or once for each location) for a predetermined part (eg, a plurality of places) of the user's body of the server 400 by the finger vein sensor device 120. Is executed (s1300). The acquired biometric information is transmitted to the window terminal 200 (s1301).

  The window terminal 200 receives it (s1302) and transfers the received biometric information to the server 400 (s1303). The server 400 receives this (s1304) and stores it in the biological information storage unit 410 (s1305). In addition, the server 400 transmits a recording request for the user that the biometric information has been stored in the biometric information storage unit 410 to the business system 300 such as a financial institution (s1306). On the other hand, the business system 300 receives this recording request (s1307), and records the registration status of the biometric information related to the user in the customer information storage unit 310 in response to the recording request (s1308). This is the end of the biometric information registration process.

  Next, an automatic update process of biometric information at the time of ATM (terminal 200) transaction of the financial institution will be described. FIG. 9 is a flowchart showing an actual procedure 1 of the biometric information update method according to another embodiment. First, the system 100 acquires the biometric information reading result regarding the predetermined part of the user's body from the finger vein sensor device 120, that is, the biometric information at the time of authentication (s1400), and stores it in an appropriate memory. Also, this is transmitted to the ATM 200.

  The ATM 200 receives this (s1401), and further transfers it to the server 400 (s1402). The server 400 receives the biometric information at the time of authentication (s1403), reads biometric information from its own biometric information storage unit 410 (s1404), and transmits it to the system 100 as stored biometric information (s1405).

  In the system 100, the stored biometric information is received from the server 400 (s1406) and stored in an appropriate memory. Further, the system 100 executes a collation process between the stored biometric information and the authentication biometric information (s1407), and if the stored biometric information and the authentication biometric information do not match in the collation process (s1407: NG) Notifying that the authentication related to the user has failed, the ATM 200 is notified that the biometric information stored in the server 400 and the biometric information of the user obtained at the time of authentication do not match. The ATM 200 receives and outputs this notification (s1408), and the process ends.

  On the other hand, in the verification process, if the stored biometric information and the biometric information at the time of authentication match (s1407: OK), the normal biometric information is processed while the biometric information at the time of authentication is changed. An instruction to store the biometric information at the time of authentication is transmitted to the server 400. The server 400 receives this, and the biological information storage unit 410 stores the biological information having the oldest storage date and time in the biological information storage unit 410 among the one or more pieces of biological information already stored. The information is specified by referring to the information and replaced with the authentication biometric information (s1409). Then, the processing in this flow ends.

  Of the one or more pieces of biological information already stored in the server 400, the oldest biological information stored in the server 400 is replaced with the biological information included in the storage instruction, that is, the oldest biological information is stored. The biometric information erasure instruction can be transmitted from the system 100 to the corresponding server 400.

  Further, the system 100 may transmit an instruction to delete the biometric information having the lowest similarity to the biometric information at the time of authentication among the one or more pieces of biometric information already stored in the server 400 to the corresponding server 400. Good. In this case, for example, the server 400 compares the feature points of the biometric information at the time of authentication with the feature points of each biometric information stored in the biometric information storage unit 410, and determines the similarity based on the frequency of matching points or the like. can do.

  Next, a procedure for automatically updating biometric information at the time of a transaction at the window of the financial institution will be described. FIG. 10 is a flowchart showing an actual procedure 2 of the biometric information update method according to another embodiment. First, from the finger vein sensor device 120 of the system 100, biometric information reading results relating to a predetermined part of the user's body, that is, biometric information at the time of authentication is acquired (s1500) and stored in an appropriate memory. Further, the biometric information at the time of authentication is transmitted to the window terminal 200 (s1501).

  The window terminal 200 receives the authentication biometric information (s1502) and transfers it to the server 400 (s1503). The server 400 receives the biometric information at the time of authentication (s1504), reads biometric information from its own biometric information storage unit 410 (s1505), and transmits it to the system 100 (s1506).

  In the system 100, the biometric information is received from the server 400 (s1507), and stored in a suitable memory as stored biometric information of the present invention. Here, the system 100 executes a collation process between the stored biometric information and the authentication biometric information (s1508), and if the stored biometric information and the authentication biometric information do not match in the collation process (s1508: NG) Notifying that the authentication related to the user has failed, the window terminal 200 is notified that the biometric information stored in the server 400 and the biometric information of the user obtained at the time of authentication do not match. The window terminal 200 receives and outputs this notification (s1509), and the process ends.

  On the other hand, if the stored biometric information and the authentication biometric information match in the verification process (s1508: OK), the normal biometric authentication process is executed while the authentication biometric information is changed. An instruction to store the biometric information at the time of authentication is transmitted to the server 400. The server 400 receives this, and among the one or more pieces of biological information already stored in the biological information storage unit 410, the biological information with the oldest storage date and time in the server 400 is stored in the “biological information storage unit 410. The date is specified by referring to the information, and is replaced with the authentication biometric information (s1510). Thereby, the processing in this flow is completed.

  Of the one or more pieces of biological information already stored in the server 400, the oldest biological information stored in the server 400 is replaced with the biological information included in the storage instruction, that is, the oldest biological information is stored. The biometric information erasure instruction can be transmitted from the system 100 to the corresponding server 400.

  Further, the system 100 may transmit an instruction to delete the biometric information having the lowest similarity to the biometric information at the time of authentication among the one or more pieces of biometric information already stored in the server 400 to the corresponding server 400. Good. In this case, for example, the server 400 compares the feature points of the biometric information at the time of authentication with the feature points of each biometric information stored in the biometric information storage unit 410, and determines the similarity based on the frequency of matching points or the like. can do.

ADVANTAGE OF THE INVENTION According to this invention, it can respond reliably with respect to the change of biometric information, and can maintain the precision of biometric authentication favorably.
As mentioned above, although embodiment of this invention was described concretely based on the embodiment, it is not limited to this and can be variously changed in the range which does not deviate from the summary.

It is a network block diagram including the biometric information update system in this embodiment. It is a figure which shows the example of a data structure in each of (a) biometric information storage part in this embodiment, and (b) customer information storage part. It is a flowchart which shows the biometric information registration procedure in this embodiment. It is a flowchart which shows the actual procedure 1 of the biometric information update method in this embodiment. It is a flowchart which shows the actual procedure 2 of the biometric information update method in this embodiment. It is a network block diagram containing the biometric information update system in other embodiment. It is a figure which shows the example of a data structure in each of (a) biometric information storage part and (b) customer information storage part in other embodiment. It is a flowchart which shows the biometric information registration procedure in other embodiment. It is a flowchart which shows the actual procedure 1 of the biometric information update method in other embodiment. It is a flowchart which shows the actual procedure 2 of the biometric information update method in other embodiment.

Explanation of symbols

50 IC Card 51 Biometric Information Storage Unit 100 System 101 Program Database 102 Program 103 Memory 104 CPU
105 I / O unit 106 Collation program 107 Stored biometric information acquisition unit 108 Authentication biometric information acquisition unit 109 Update instruction unit 110 Old information deletion instruction unit 111 Dissimilar information deletion instruction unit 115 IC card read / writer device 116 Card read device 120 Finger vein sensor device 130 Network 200 terminal (ATM, counter terminal)
210 business program 300 business system 310 customer information storage unit 400 server 410 biometric information storage unit

Claims (5)

A system for automatically updating biometric information for biometric authentication stored in a storage device,
A stored biometric information acquisition unit that acquires biometric information read by the biometric information extraction device as stored biometric information from a biometric information extraction device that reads biometric information from the storage device;
An authentication-time biometric information acquisition unit that acquires biometric information at the time of biometric authentication read by the biometric information authentication device for the target person as biometric information at the time of authentication from a biometric information authentication device that reads biometric information from a biometric authentication target person; ,
If the stored biometric information and the authentication biometric information are collated, and the stored biometric information and the authentication biometric information match in the collation processing, the authentication including the authentication biometric information is performed. An update instruction unit for transmitting a storage instruction of biometric information to the storage device;
A biometric information update system comprising: In claim 1,
When transmitting the storage instruction to the storage device, among the one or more pieces of biological information already stored in the storage device, an instruction to delete the biological information having the oldest storage date and time in the storage device is transmitted to the corresponding storage device. A biometric information update system comprising an old information erasure instruction unit. In claim 1,
One or more pieces of biometric information stored in the storage device are compared with the biometric information at the time of authentication, and among the one or more pieces of biometric information already stored in the storage device, the similarity to the biometric information at the time of authentication A biometric information update system comprising a dissimilar information erasure instruction unit that transmits a biometric information erasure instruction having the lowest probability to a corresponding storage device. A method of automatically updating biometric information for biometric authentication stored in a storage device by a computer,
From the biometric information extraction device that reads biometric information from the storage device, the biometric information read by the biometric information extraction device is acquired as stored biometric information,
From the biometric information authentication device that reads biometric information from the subject of biometric authentication, the biometric information at the time of biometric authentication read by the biometric information authentication device for the subject is acquired as biometric information at the time of authentication,
If the stored biometric information and the authentication biometric information are collated, and the stored biometric information and the authentication biometric information match in the collation processing, the authentication including the authentication biometric information is performed. Transmitting an instruction to store biometric information to the storage device;
The biometric information update method characterized by the above-mentioned. A program for causing a computer to execute a method for automatically updating biometric information for biometric authentication stored in a storage device,
Acquiring biometric information read by the biometric information extraction device as stored biometric information from a biometric information extraction device that reads biometric information from the storage device;
Acquiring biometric information at the time of biometric authentication read by the biometric information authentication device from the biometric information authentication device that reads biometric information from the subject of biometric authentication as biometric information at the time of authentication;
If the stored biometric information and the authentication biometric information are collated, and the stored biometric information and the authentication biometric information match in the collation processing, the authentication including the authentication biometric information is performed. Transmitting an instruction to store time biological information to the storage device;
A biometric information update program comprising:

Images